At mac of all trades, we make sure that all of our refurbished Apple products are tested and cleaned to the highest standards. We offer used Apple batteries, so that you can easily replace your battery, without having to buy a new device. Check out our other refurbished parts to see if you need anything else. Apple uses Lithium-ion batteries because they are weigh less, last longer and charge efficiently. If you find yourself charging your device more frequently, you may need to replace the battery with one of our great deals.